Home / 389,557.74-584,440.29-123,323.70

Finding the Fourth Proportional to 389,557.74, 584,440.29 and 123,323.70

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Solution

The fourth proportional to 389,557.74, 584,440.29 and 123,323.70 is: 185,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,557.74 : 584,440.29 = 123,323.70 : x
  2. Step 2: Convert to fraction form
    389,557.74/584,440.29 = 123,323.70/x
  3. Step 3: Cross multiply
    389,557.74x = 584,440.29 × 123,323.70
  4. Step 4: Simplify right side
    389,557.74x = 72,075,338,991.87
  5. Step 5: Solve for x
    x = 72,075,338,991.87/389,557.74
  6. Step 6: Final answer
    x = 185,018.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.